Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1993-05-10
1994-06-28
Thibodeau, Paul J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428329, 428336, 428408, 428900, 428694B, 428694BN, 428694BM, 428694SG, B32B 516, G11B 566
Patent
active
053245822
ABSTRACT:
A magnetic recording medium having magnetic layers on the non-magnetic support. The surface of the non-magnetic support has more than 200 protrusions per mm of the measuring length having more than 0.01 .mu.m height, and protrusions having the height more than 0.30 .mu.m height less than 500 per 400 mm of the measuring length. The protrusions are on the surface of the magnetic layers provided or opposit side of the support or the both sides. These protrusions reduce the surface friction of the medium, resulting the better electro-magnetic properties and the longer life for repeated usages.
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patent: 5085915 (1992-02-01), Taga et al.
patent: 5116658 (1992-05-01), Miyake et al.
Goto Narito
Sasaki Kunitsuna
Sekiguchi Nobuyuki
Takeda Katsuyuki
Bierman Jordan B.
Kiliman Leszek
Konica Corporation
Thibodeau Paul J.
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